AP Bio Unit 3: Enzymes

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts that speed up the rate of chemical reactions in biological systems.

Front

What are enzymes primarily made of?

Back

Enzymes are primarily made of proteins.

Front

Define a substrate in the context of enzyme activity.

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

What happens to enzyme activity at high temperatures?

Back

Enzyme activity declines at high temperatures due to denaturation.

Front

What is denaturation in relation to enzymes?

Back

Denaturation is the process where an enzyme loses its functional shape, leading to a loss of activity.

Front

What is a catalyst?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.

Front

How do enzymes lower the activation energy of a reaction?

Back

Enzymes lower the activation energy by providing an alternative reaction pathway.

Front

What is the active site of an enzyme?

Back

The active site is the specific region of an enzyme where the substrate binds.

Front

What factors can affect enzyme activity?

Back

Factors that can affect enzyme activity include temperature, pH, and substrate concentration.

Front

What is the significance of enzyme specificity?

Back

Enzyme specificity ensures that enzymes only catalyze specific reactions, which is crucial for metabolic regulation.